Daikin LMSEY1A09AVM01, Installation Manual

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5 Installation
Installation manual
14
LMSEY1A09/13 + LMSEY2A19/25
Daikin LMS
4P728170-1 – 2023.03
▪ When "wall mounting" method was used, guide the drain
pan pipe (c) through the hole in the insulation pad (b). Then
further guide it into the unit through the hole in the back plate
(e).
▪ When "saddle mounting" method was used, guide the drain
pan pipe (c) through the hole in the cold room wall (a). Then
further guide it into the unit through the hole in the back plate
(e).
2 Instal the 7 screws (f) to fix the drainpan (d) to the evaporator.
Tighten the screws to a torque of 2.17 N•m.
NOTICE
When the drain pan is removed, the electric drain heater
must be slid out of the drain pan pipe. The electric drain
heater must be pushed back into the drain pan pipe when
the drain pan is reinstalled.
d c b a c e
f f f f f g
a Cold room wall
b Insulation pad assembly
c Drain pan pipe
d Drain pan
e Back plate of the unit
f Screw
g Electric drain heater
5.4.6 To seal the unit
1 Seal the gaps between the unit and insulation pad and the cold
room wall with mastic.
If the saddle mounting method was applied:
2 Reinstall the cold room roof.
3 Complete fixing the unit further with 2 screws through the top
fixing holes.
5.4.7 To install the external drain pipe
Frost gradually builds-up on evaporator coils during operation. The
unit uses a hot refrigerant to defrost the evaporator coils. Hot
refrigerant gas passes through the evaporator coil and melts the
frost. The melt water drips into the evaporator drain pan, where the
drain pan defrost coil prevents re-icing. It then flows via the drain
pipe (a) to the overflow tank (c) in the condenser part of the unit.
Most of the time this water evaporates in the overflow tank (c) that
has hot refrigerant pipes (d) going through it. This also works as a
"water cooling system" for hot refrigerant at the same time.
In case of an overflow, the external drain connection (e) must be
connected to an external drain pipe or hose (g).
INFORMATION
Fresh meat, fish or vegetables produce a lot of humidity.
Already frozen products produce little humidity.
INFORMATION
The internal drain pipe has a siphon, which ensures that
warm air from the unit condenser cannot escape to the unit
evaporator.
a d b c e f g
a Drain pipe (internal)
b Overflow opening
c Overflow tank
d Hot refrigerant pipes
e External drain connection (Ø 14 mm)
f Pipe clamp
g Drain pipe or hose (external)
1 Install a pipe clamp (f) over the drain pipe (or hose) (g).
2 Slide the drain pipe (g) with the pipe clamp (f) over the external
drain pipe connection (e).
3 Tighten the pipe clamp (f).
4 Make sure condensation water can be evacuated properly
through the drain pipe:
▪ The drain pipe should run as straight as possible down the
cold room wall, with no kinks or bends.
▪ Secure with screws, tie wraps and clamps as required.
NOTICE
Incorrect connection of the drain hose might cause leaks,
and damage the installation space and surroundings.
5.5 To connect the power supply
The supply cable for models LM13 has a ground, line and
neutral conductor. The supply cable for models LM25 has
one ground, three line and one neutral conductors. The supply cable
is labelled C1.
NOTICE
In case of a three-phase power supply the compressor can
break down if the wires are not connected correctly.
A number to identify the phases is printed on the surface of
the wire insulation. The meaning of the numbers is the
following: 1=L1, 2=L2, 3=L3, 4=neutral.